by Henry Louis

Methuen 1928 Methuen's monographs on coalmining

Available at 6 libraries

by Carl Schnabel ; translated by Henry Louis

MacMillan 1921 3rd ed

v. 1: Copper-lead-silver-gold

Available at 14 libraries

by Carl Schnabel ; translated by Henry Louis

MacMillan 1905-1907 2nd ed

vol. 1 , vol. 2

Available at 15 libraries

by Henry Louis

Mining journal [19--?]

Available at 2 libraries